java and j2ee lab course code: isl67

Java and J2EE Lab

Course Code: ISL67

Credit: 0:0:1

Contact Hours: 28

Course Content

1. Write a Program that simulates a telephone that records missed incoming calls. For

each missed call, store the time of call, telephone number of origin, and name of the

caller if the name is available. For unlisted numbers, set the name to “private caller”.

Choose or extend the most appropriate collection class and provide the following

features.

Numbers are recalled in the order they arrive

Up to 10 numbers are recorded. When the eleventh call comes in, it is stored and the

oldest call is deleted so that no more than 10 numbers are ever recorded.

After each number display, the user can select

i. To delete the call

ii. To go on to the next missed call, or

iii. To display the call details (number, caller name and time).

Delete the number if user specifies a number to delete.

Write a helper class to represent an incoming call with fields to hold the number, name

of the caller, and time of the call. Write a tester call that stores the several numbers,

simulate the user pressing the missed-calls button, and finally prints the entire

collection of stored calls.

import java.util.*;

class CallerD

{

Date date = new Date();

String name;

Integer telNo;

CallerD(Date d, String n,Integer t)

{

date =d;

name = n;

telNo = t;

}

}

public class TelephoneClass {

/**

* @param args

*/

HashMap<Long,String> hm = new HashMap<Long,String>();

ArrayList<Long> callList = new ArrayList<Long>();

ArrayList<CallerD> missedcall = new ArrayList<CallerD>();

void createCaller()

{

hm.put(new Long("9898080099"),"Hari M");

hm.put(new Long("9898087654"),"Lankesh M");

hm.put(new Long("9898897843"),"Lucky");

}

public static void main(String[] args) {

// TODO Auto-generated method stub

}

}

//Program to create a database of callers

import java.util.*;

import java.util.Map.Entry;

public class DataBaseCallers {

/**

* @param args

*/

public static HashMap<Long,String> hm;

public static Scanner sc = new Scanner(System.in);

static void createEnteries(int n)

{ hm = new HashMap<Long,String>();

for(int i=0;i<n;i++)

{

System.out.println("Enter the phone number and Contact

name");

Long phno = sc.nextLong();

String name = sc.next();

hm.put(phno, name);

}

}

public static void ForHoldingData() {


System.out.println("Enter how many details do you require?");

int n = sc.nextInt();

createEnteries(n);

}

public static void display()

{

Set<Entry<Long,String>> hashSet=hm.entrySet();

for(Entry<Long,String> entry:hashSet ) {

System.out.println("Key="+entry.getKey()+", Value="+entry.getValue());

}

}

}

import java.util.*;

class MissedCallDetails

{

Calendar calObj;

Long tel_num;

String name;

MissedCallDetails(Calendar cob, Long tn, String n)

{

calObj = cob;

tel_num = tn;

name = n;

}

void display()

{ calObj.add(Calendar.DATE, 1);

//SimpleDateFormat format1 = new SimpleDateFormat("yyyy-MM-dd");

System.out.println("Current Time is "+calObj.getTime());

System.out.println("Telephone number is "+tel_num);

System.out.println("Name is "+name);

}

}

public class RecordManageMissedCall {

/**

* @param args

*/

static LinkedList<MissedCallDetails> amiss;

static void HandleMissedCallActivities()

{

amiss = new LinkedList<MissedCallDetails>();

while(true)

{

System.out.println("Enter a choice");

System.out.println("1: add missed call \n 2.Display and delete on

request \n 3. Delete based on number \n 4. Print");

int choice = DataBaseCallers.sc.nextInt();

//int i=1;

switch(choice)

{

case 1: //add missed call

System.out.println("Enter the missed call telephone

number");

Calendar cb = Calendar.getInstance();

Long telnum= DataBaseCallers.sc.nextLong();

String name; // = DataBaseCallers.sc.next();

//check for name in the Database

if(DataBaseCallers.hm.containsKey(telnum))

name = DataBaseCallers.hm.get(telnum);

else

name = "Private Caller";

MissedCallDetails mcd = new

MissedCallDetails(cb,telnum,name);

if(amiss.size()==10)//for eleventh entry onwards

{

//for eleventh entry onwards enter from the beginning

amiss.removeLast();

}

amiss.addFirst(mcd);

break;

case 2: // Display number and ask for user to delete

ListIterator<MissedCallDetails> it = amiss.listIterator();

LinkedList<MissedCallDetails> removeList = new

LinkedList<MissedCallDetails>();

int i=0;

while(it.hasNext())

{ i++;

System.out.println("Number is ");

MissedCallDetails m1 = it.next();

System.out.println(m1.tel_num);

System.out.println("Do you want to delete the

details related to this number? Indicate by 1 : delete, 2: move next call , 3: display call

details \n");

int cho = DataBaseCallers.sc.nextInt();

if(cho==1)

removeList.add(m1);

else if(cho==3)

{//display

m1.display();

}

}

if(i==0)

System.out.println("No missed calls");

amiss.removeAll(removeList);

break;

case 3: //Delete based on the number specified by the user

System.out.println("Delete based on the number given by

user");

System.out.println("Enter the number");

Long num = DataBaseCallers.sc.nextLong();

ListIterator<MissedCallDetails> it1 = amiss.listIterator();

boolean flag = false;

i=0;

while(it1.hasNext())

{ i++;

MissedCallDetails m1 = it1.next();

if(m1.tel_num==num)

{

flag =true;

amiss.remove(m1);

break;

}

}

if(i!=0)

{

if(flag==true)

System.out.println("Phone number with details "+

num +"deleted");

else

System.out.println("No such number exists");

}

else

System.out.println("No missed Call");

break;

case 4:

//print missed call details

ListIterator<MissedCallDetails> it2 = amiss.listIterator();

while(it2.hasNext())

{

MissedCallDetails m1 = it2.next();

m1.display();

}

break;

default: return;

}

}

}



//1. Enter contact details in the database

DataBaseCallers.ForHoldingData();

System.out.println("Receive missed Calls");

//DataBaseCallers.sc

HandleMissedCallActivities();

DataBaseCallers.display();

}

}

2. Write a Java program using user-defined storage classes to create a book database and

store it in a Collection List. Books collection should include title, author, publisher and

price. Also write a method to sort the books in ascending order of price and store it in

another List. Maintain the book details with respect to an unique book id. Prompt for

an author name and list all the books with the same author name. Create a new list

holding all the book details with price greater than a user specified price. For a given a

value by the user, find all the books that match either the whole or a part of the book

title. Identify a publisher and print books from a particular publisher. Update the

publisher details based on a title.

import java.util.*;

class Book

{

String title,author, publisher;

double price;

Book(String title,String author,String publisher,double price)

{ this.title=title;

this.author=author;

this.publisher=publisher;

this.price = price;

}

public String toString()

{

String str= "Book has "+title+"title "+"whose author is "+author;

str+="\n Book is published by "+publisher;

str+="\n Price is= "+price;

return str;

}

}

class BookCompare implements Comparator<Book>

{

public int compare(Book b1,Book b2)

{

return (int) (b1.price-b2.price);

}

}

public class SecondProg_lab {

static HashMap<Integer,Book> hmbook = new HashMap<Integer,Book>();

static Scanner sc = new Scanner(System.in);

void BookHashmap(ArrayList<Book> barr)

{ int i=1;

for(Book b1:barr)

{

hmbook.put(i,b1);

i++;

}

}

static void printHashMap()

{

//print hashmap

Set<Map.Entry<Integer,Book>> set =

hmbook.entrySet();

for(Map.Entry<Integer, Book> s:set)

{

System.out.println(s.getKey());

System.out.println(s.getValue());

}

}

static void printBookData(Book b)

{

String str= "Book has "+b.title+"title "+"whose author is "+b.author;

str+="\n Book is published by "+b.publisher;

str+="\n Price is= "+b.price;

System.out.println(str);

}

static void Read_data(ArrayList<Book> barr)

{

while(true)

{

System.out.println("Do u want to enter book details? Mention

yes/no");

String val = sc.nextLine();

if(val.toUpperCase().equals("YES"))

{

System.out.println("Enter Book Details");

System.out.println("Enter Title");

String title =sc.nextLine();

System.out.println("Enter Author");

String author = sc.nextLine();

System.out.println("Enter Publisher");

String pub = sc.nextLine();

System.out.println("Enter Price");

double price = Double.parseDouble(sc.nextLine());

Book b1 = new Book(title,author,pub,price);

barr.add(b1);

}

else

{

break;

}

}

}

static boolean isSubString(String s1,String s2)

{

int M = s1.length();

int N = s2.length();

/* A loop to slide pat[] one by one */

for (int i = 0; i <= N - M; i++) {

int j;

/* For current index i, check for

pattern match */

for (j = 0; j < M; j++)

if (s2.charAt(i + j) != s1.charAt(j))

break;

if (j == M)

return false;

}

return true;

}

public static void main(String args[]){

ArrayList<Book> arbook = new ArrayList<Book>();

Read_data(arbook);

//Sort in ascending order

ArrayList<Book> clone = (ArrayList<Book>) arbook.clone();

ArrayList<Book> booklist = clone;

booklist.sort(new BookCompare());

System.out.println("Before sorting");

System.out.println(arbook);

System.out.println("After sorting");

System.out.println(booklist);

//Prompt for an author name and list all the books with the same author

name.

System.out.println("Enter author name");

String aut_name = sc.nextLine();

Set<Map.Entry<Integer,Book>> set = hmbook.entrySet();


{ Book b1=s.getValue();

String s1 =b1.author;

if(s1.equals(aut_name))

{

printBookData(s.getValue());

}

}

//Create a new list holding all the book details with price greater than a

user specified price.

LinkedList<Book> lbook = new LinkedList<Book>();

System.out.println("To list all books with price greater than a value,

enter a price");

double pri = Double.parseDouble(sc.nextLine());

set = hmbook.entrySet();



if(b1.price>pri)

{

lbook.add(b1);

}

}

//print linkedlist

System.out.println("Books with price > than "+pri);

for(Book b:lbook)

{

System.out.println(b);

}

//For a given a value by the user, find all the books that match either the

whole or a part of the book title.

System.out.println("enter a part of a publishers name");

String p = sc.nextLine();




if(isSubString(b1.title,p))

{

printBookData(b1);

}

}

//Identify a publisher and print books from a particular publisher.

System.out.println("enter a publishers name to print book details");

p = sc.nextLine();




if(b1.publisher.equals(p))

{

printBookData(b1);

}

}

//Update the publisher details based on a title.

System.out.println("enter a title whose publisher is to be updated");

String t = sc.nextLine();

System.out.println("enter the updated publishers name");

p = sc.nextLine();




if(b1.title.equals(t))

{

b1.publisher=p;

hmbook.put(s.getKey(), b1);

//printBookData(b1);

}

}

printHashMap();

}

}

3. Create a desktop java application using swings to enable an user to enter student

information such as name, usn, age, address, sgpa of 8 semesters, category. Perform

validations on age and sgpa. Display appropriate messages in pop up boxes to indicate

wrong entries, on clicking of the “compute” button. Also find the cgpa based on the

obtained sgpa. On clicking of the “done” button, place the student details in a

collection. A click on the “display” button should display the collection in a textarea.

public class Student {

String name,usn,address,category;

int age;

//float sgpa1,sgpa2,sgpa3,sgpa4,sgpa5,sgpa6,sgpa7,sgpa8;

float cgpa;

public Student(String name,String usn,String address,String cat,int age, float cgpa)

{

this.name=name; this.usn=usn;

this.address=address; this.category=cat;

this.age=age;

this.cgpa=cgpa;

}


{

String stud= name + " "+usn+" residing in "+address+" belonging to category

"+category+" of age "+age;

stud+= "has cgpa "+cgpa;

return stud;

}

}

import java.awt.*;

import java.awt.event.*;

//import java.awt.event.ActionListener;

import java.util.LinkedList;

import javax.swing.*;

public class StudentClass implements ActionListener{

LinkedList<Student> stud_list = new LinkedList<Student>();

JLabel jl1 = new JLabel("Enter Name");

JLabel jl13 = new JLabel("Enter usn");

JLabel jl2 = new JLabel("Enter Age");

JLabel jl3 = new JLabel("Enter Address");

JLabel jl4 = new JLabel("Select category");

JLabel jl5 = new JLabel("Enter sgpa of I sem");

JLabel jl6 = new JLabel("Enter sgpa of II sem");

JLabel jl7 = new JLabel("Enter sgpa of III sem");

JLabel jl8 = new JLabel("Enter sgpa of IV sem");

JLabel jl9 = new JLabel("Enter sgpa of V sem");

JLabel jl0 = new JLabel("Enter sgpa of VI sem");

JLabel jl11 = new JLabel("Enter sgpa of VII sem");

JLabel jl12 = new JLabel("Enter sgpa of VIII sem");

JLabel jcgpa = new JLabel("CGPA obtained");

JTextField name=new JTextField(20) ;

JTextField usn=new JTextField(20) ;

JTextField age=new JTextField(3) ;

JTextArea address=new JTextArea(3,4) ;

JComboBox cat=new JComboBox() ;

JTextField cgpa =new JTextField(10);

JTextField sgpa1 = new JTextField(5);








JButton submit = new JButton("compute");

JButton done = new JButton("done");

JButton display = new JButton("display");

JTextArea stud_list_display = new JTextArea(20,20);

JFrame f1=new JFrame("Student Information");

JFrame f2=new JFrame("Student Collection Display");

StudentClass()

{

//JFrame f1=new JFrame("Student Information");

jl1.setBounds(10,10,10,10);

cat.addItem("GM");

cat.addItem("SC/ST");

cat.addItem("Cat1");

cat.addItem("Cat2");

f1.add(jl1);f1.add(name);

f1.add(jl13);f1.add(usn);

f1.add(jl2);f1.add(age);f1.add(jl3);f1.add(address);

f1.add(jl4);f1.add(cat);

f1.add(jl5);f1.add(sgpa1);f1.add(jl6);f1.add(sgpa2);f1.add(jl7);f1.add(sgpa3);f1.add(jl8

);f1.add(sgpa4);

f1.add(jl9);f1.add(sgpa5);f1.add(jl0);f1.add(sgpa6);f1.add(jl11);f1.add(sgpa7);f1.add(jl

12);f1.add(sgpa8);

f1.add(jcgpa);f1.add(cgpa);

f1.add(submit);f1.add(done);f1.add(display);

f2.add(stud_list_display);

f1.setSize(900,800);

f1.setLayout(new GridLayout(8,8));

f1.setVisible(true);

submit.addActionListener(this);

done.addActionListener(this);

display.addActionListener(this);

}

public void actionPerformed(ActionEvent evt)

{

if(evt.getSource()==submit)

{

//check for validations

try

{

int v1=Integer.parseInt(age.getText());

if(v1<18 || v1>35)

{

String age1=JOptionPane.showInputDialog(null,"Enter valid

Age");

age.setText(age1);

}

}

catch(NumberFormatException e) {

JOptionPane.showMessageDialog(f1, "Invalid entry");

age.requestFocus();

}

checkSGPA_valid(1,sgpa1);








float cal_cgpa = calculate_cgpa();

cgpa.setText(Float.toString(cal_cgpa));

}

else if(evt.getSource()==done)//to submit into collection

{

Student s1 = new

Student(name.getText(),usn.getText(),address.getText(),String.valueOf(cat.getSelectedItem()),

Integer.parseInt(age.getText()),Float.parseFloat(cgpa.getText()));

stud_list.add(s1);

}

else {

f1.setVisible(false);



stud_list_display.setText(" ");

for(Student s:stud_list)

{

stud_list_display.append(s.toString()+ "\n");

}

}

}

float calculate_cgpa()

{

float v1 = Float.parseFloat(sgpa1.getText());








return (v1+v2+v3+v4+v5+v6+v7+v8)/8;

}

void checkSGPA_valid(int sem,JTextField sgpa)

{

try {

if(Float.parseFloat(sgpa.getText())>10)

{

String v1 = JOptionPane.showInputDialog(null,"Enter an SGPA less than or

equal to 10 for sem "+sem);

sgpa.setText(v1);

}

}

catch(NumberFormatException e) {

String v2=JOptionPane.showInputDialog(null, "Please enter SGPA for

semester "+sem);

sgpa.setText(v2);

//sgpa.requestFocus();

}

}

public static void main(String args[])

{

StudentClass sc = new StudentClass();

}

}

4. Write a java program using swings to validate user login information using dialog

boxes. Once validated, allow the user to enter the customer id, if the person is a new

customer, else check whether the customer exists in a collection and obtain the

customer id. The customer id can be obtained given a mobile number. Allow the user

to enter the item purchased by giving the item id and quantity purchased. On clicking

of a button, the item name and the total cost should appear in the corresponding GUI

components. Using option dialog box, indicate the types of discount available for the

customer. On clicking on the print button, print the details in information dialog box.

import java.awt.event.*;

import java.util.ArrayList;

//import java.awt.event.ActionListener;

import java.util.HashMap;

import java.util.Scanner;

import javax.swing.*;

public class UserLogin {

JLabel jl1 = new JLabel("Enter customer id");

JTextField cid = new JTextField(10);

JLabel jl2 = new JLabel("Enter mobile number");

JTextField phone = new JTextField(12);

JButton check = new JButton("Check phone");

JLabel jl3 = new JLabel("Enter item id");

JTextField itemid = new JTextField(10);

JLabel jl4 = new JLabel("Enter quantity bought");

JTextField quan = new JTextField(4);

HashMap<Long,Integer> hm = new HashMap<Long,Integer>();

static ArrayList<ItemDetails> ar_items = new ArrayList<ItemDetails>();

JLabel jl5 = new JLabel("Item name");

JTextField itemname= new JTextField(30);

JLabel jl6 = new JLabel("Item cost");

JTextField itemc= new JTextField(4);

JButton display_item = new JButton("Item Details");

void add_collection()

{

hm.put(9887667887L,123);

hm.put(7665436788L,232);

hm.put(647485869L,456);

}

int check_collection(Long val)

{

//Add items into collection

add_collection();

if(hm.containsKey(val)) {

return hm.get(val);

}

else

return -1;

}

UserLogin(){

JFrame f1 = new JFrame("Customer information");

JFrame f2 = new JFrame("Customer Information");

String uname = JOptionPane.showInputDialog(null,"Enter username");

String passwd = JOptionPane.showInputDialog(null,"Enter Password");

if(uname.equals("[email protected]")&&passwd.equals("pass"))

{

f1.add(jl2);f1.add(phone); f1.add(check);



check.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent evt) {

f1.setVisible(false);

f2.add(jl1);f2.add(cid);

f2.add(jl3);f2.add(itemid);

f2.add(jl4);f2.add(quan);

//check collection

int v=check_collection(Long.parseLong(phone.getText()));

cid.setText(Integer.toString(v));

if(v==-1)

{

String cid1 = JOptionPane.showInputDialog(null,"Enter

customer id");

cid.setText(cid1);

}


}

});

}

else

{

JOptionPane.showMessageDialog(null,"Invalid details Please run the code

once again ");

}

display_item.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent evt) {

int v1 = Integer.parseInt(itemid.getText());

check_item(v1);

}

});

}

void check_item(int id)

{

for(ItemDetails item:ar_items)

{

if(item.item_id==id)

{

itemname.setText(item.item_name);

itemc.setText(Float.toString(item.cost));

}

}

}

public static void main(String args[])

{

//create a collection of items

Scanner sc = new Scanner(System.in);

while(true)

{

System.out.println("Do u want to enter item details. Enter yes/no");

String v1 = sc.nextLine();

if(v1.equals("yes"))

{

System.out.println("Enter item id");

int id = Integer.parseInt(sc.nextLine());

System.out.println("Enter item name");

String item_name = sc.nextLine();

System.out.println("Enter item cost");

float cost =Float.parseFloat(sc.nextLine());

ItemDetails it = new ItemDetails(id,item_name,cost);

ar_items.add(it);

}

else

{

break;

}

}

UserLogin ul = new UserLogin();

}

}

public class ItemDetails {

int item_id;

String item_name;

float cost;

ItemDetails(int it,String iname,float c)

{

item_id =it;

item_name = iname;

cost = c;

}


{

return item_id+ " "+item_name+ " "+cost+" ";

}

}

5. Write a program that uses Java Swing and JDBC to create a stand-alone application:

Create two tables namely, Representative (RepNo, RepName, State, Comission, Rate)

and Customer (CustNo, CustName, State, Credit_Limit, RepNo) in MySQL database.

Use appropriate Swing components to insert values in a form.

Use another form to display Representative’s information when Credit_Limit is above

15,000.

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import javax.swing.BoxLayout;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import com.mysql.jdbc.Statement;

public class myFrame extends JFrame

{

myFrame()

{

super("My Jframe Example");

JLabel jlrep = new JLabel("Representative Information");

JLabel jl11 = new JLabel("Enter RepNo");

final JTextField jtf11 = new JTextField();

JLabel jl12 = new JLabel("Enter RepName");


JLabel jl13 = new JLabel("Enter State");


JLabel jl14 = new JLabel("Enter Commission");


JLabel jl15 = new JLabel("Enter Rate");


JButton jb1 = new JButton("Submit");

JLabel jlcus = new JLabel("Customer Information");

JLabel jl21 = new JLabel("Enter CustomerNo");


JLabel jl22 = new JLabel("Enter CustomerName");


JLabel jl23 = new JLabel("Enter State");


JLabel jl24 = new JLabel("Enter Credit limit");


JLabel jl25 = new JLabel("Enter RepNo");


JButton jb2 = new JButton("Submit");

JPanel panel = new JPanel();

final JTextArea jta = new JTextArea();

jta.setRows(10);

jta.setColumns(5);

JButton jb3 = new JButton("click");

panel.add(jl11);

panel.add(jtf11);

panel.add(jl12);

panel.add(jtf12);

panel.add(jl13);

panel.add(jtf13);

panel.add(jl14);

panel.add(jtf14);

panel.add(jl15);

panel.add(jtf15);

panel.add(jb1);

panel.add(jl21);

panel.add(jtf21);

panel.add(jl22);

panel.add(jtf22);

panel.add(jl23);

panel.add(jtf23);

panel.add(jl24);

panel.add(jtf24);

panel.add(jl25);

panel.add(jtf25);

panel.add(jb2);

panel.add(jta);

panel.add(jb3);

jb1.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

try

{

Statement stmt;

Class.forName("com.mysql.jdbc.Driver");

Connection conn =

DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "deek");

if (conn != null)

{

System.out.println("Connection successful !!!");

String Repno = jtf11.getText();

String Repname = jtf12.getText();

String state = jtf13.getText();

String commission = jtf14.getText();

String rate = jtf15.getText();

stmt = (Statement) conn.createStatement();

System.out.println(Repno + Repname + state +

commission);

String query1 = "insert into Representative

values('"

+ Repno + "','" + Repname + "','" +

state

+ "','" + commission + "','" + rate +

"');";

stmt.executeUpdate(query1);

}

else

System.out.println("Connection not successful

!!!");

}

catch (SQLException ex)

{

System.out.println(ex.getMessage());

}

catch (ClassNotFoundException exx)

{

System.out.println(exx.getMessage());

}

}

});

jb2.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

try

{

Statement stmt2;


Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root",

"deek");

if (conn != null)

{


String Custno = jtf21.getText();

String CustName = jtf22.getText();

String state = jtf23.getText();

String Credit = jtf24.getText();

int cr = Integer.parseInt(Credit);

String Rno = jtf25.getText();

stmt2 = (Statement) conn.createStatement();

System.out.println(Custno + CustName + state + cr +

Rno);

String query2 = "insert into Customer values('"+ Custno + "','"

+ CustName + "','" + state+ "','" + cr + "','" + Rno + "');";

stmt2.executeUpdate(query2);

}

else


!!!");

}


{


}


{


}

}

});

jb3.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

try {

Statement stmt;


Connection conn = DriverManager.getConnection(

"jdbc:mysql://localhost:3306/test", "root",

"deek");

if (conn != null)

{

stmt = (Statement) conn.createStatement();

String query3="SELECT * FROM

Representative WHERE RepNo IN (SELECT RepNo FROM Customer WHERE Credit_Limit

> 15000 )";

ResultSet rs = stmt.executeQuery(query3);

while (rs.next())

{

jta.append("Representative Information");

jta.append("\n");

jta.append("Number:");

jta.append(rs.getString("RepNo"));

jta.append("\n");

jta.append("Name:");

jta.append(rs.getString("RepName"));

jta.append("\n");

jta.append("State:");

jta.append(rs.getString("State"));

jta.append("\n");

jta.append("Comission:");

jta.append(rs.getString("Comission"));

jta.append("\n");

jta.append("Rate:");

jta.append(rs.getString("Rate"));

jta.append("\n");

}


}

else


!!!");

}


{


}


{


}

}

});

setContentPane(panel);

}


myFrame mf = new myFrame();

mf.getContentPane().setLayout(

new BoxLayout(mf.getContentPane(), BoxLayout.Y_AXIS));

mf.setVisible(true);

mf.setDefaultCloseOperation(EXIT_ON_CLOSE);

mf.pack();

}

}

6. Create a Servlet to file IT returns that accepts personal information, salary information

and Tax deduction details from the user and write the information into a file. Also

accept the name of the person and display in on the page.

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class ITreturns extends HttpServlet {

private static final long serialVersionUID = 1L;

public ITreturns() {

super();

}

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws

ServletException, IOException {

String name=request.getParameter("name");

String gender=request.getParameter("gender");

String salary=request.getParameter("salary");

String tax=request.getParameter("tax");

PrintWriter out=response.getWriter();

File file = new File("/home/mahen/1.txt");

file.createNewFile();

FileOutputStream fout = new FileOutputStream(file);

out.println(""+name+gender+salary+tax);

fout.write(("hello"+name+gender+salary+tax).getBytes());

fout.close();

}

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws


}

}

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

info.jsp

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>Insert title here</title>

</head>

<body>

<form action="ITreturns" method="get" >

name:<input type="text" name="name"/>

<select name="gender">

<option>male</option>

<option>fe</option>

</select>

sal:<input type="text" name="salary"/>

tax:<input type="text" name="tax"/>

<input type="submit"/>

</form>

</body>

</html>

7. Create a servlet that accepts patient information in a hospital such as patient id, patient

name, age, date of admission, cause of admission, doctor diagnosed, treatment

proposed. Place the details into a database. Allow options to insert , update ,view and

delete the contents in the database.




import

java.sql.PreparedStatement;

import javax.servlet.ServletException; import

javax.servlet.annotation.WebServlet; import

javax.servlet.http.HttpServlet; import

javax.servlet.http.HttpServletRequest; import

javax.servlet.http.HttpServletResponse;

@WebServlet("/PatientServlet") public class

PatientServlet extends HttpServlet {


public PatientServlet()

{

super(); // TODO Auto-generated

constructor stub }

protected void doGet(HttpServletRequest request, HttpServletResponse

response) throws ServletException, IOException {

} protected void doPost(HttpServletRequest request, HttpServletResponse response) throws


String name = request.getParameter("name");

String age = request.getParameter("age");

String date = request.getParameter("date");

String cause = request.getParameter("cause");

String doctor = request.getParameter("doc");

String treat = request.getParameter("treat");

String s = "";

//System.out.println(s);

try

{

Class.forName("com.mysql.jdbc.Driver"); Connection con =

DriverManager.getConnection("jdbc:mysql://localhost:3306/java", "root", "root");

String updateDB = "insert into PatientRecords

values(?,?,?,?,?,?);";

PreparedStatement ps =

con.prepareStatement(updateDB); ps.setString(1,

name); ps.setString(2, age); ps.setString(3, date);

ps.setString(4, cause); ps.setString(5, doctor);

ps.setString(6, treat); int i = ps.executeUpdate();

System.out.println("Rows inserted: "+i); s = name + "\n" + age + "\n" + date +

"\n" + cause + "\n" + doctor + "\n" + treat + "\n" + i;

} catch(Exception e){

System.out.println(e); }

request.setAttribute("data", s);

request.getRequestDispatcher("/view.jsp").forward(request,response);

}

} import java.io.IOException; import

java.sql.Connection; import

java.sql.DriverManager;

import javax.servlet.ServletException; import

javax.servlet.annotation.WebServlet; import

javax.servlet.http.HttpServlet; import

javax.servlet.http.HttpServletRequest; import

javax.servlet.http.HttpServletResponse;

import

com.mysql.jdbc.ResultSet;

import

com.mysql.jdbc.Statement;

@WebServlet("/GetServlet") public class

GetServlet extends HttpServlet {


public GetServlet()

{

super(); // TODO Auto-generated

constructor stub }

protected void doGet(HttpServletRequest request, HttpServletResponse

response) throws ServletException, IOException {

request.getRequestDispatcher("/index.html").forward(request,

response);

} protected void doPost(HttpServletRequest request, HttpServletResponse response) throws


try

{

Class.forName("com.mysql.jdbc.Driver"); Connection con =

DriverManager.getConnection("jdbc:mysql://localhost:3306/java", "root", "root");

Statement stmt = (Statement) con.createStatement(); ResultSet rs = (ResultSet)

stmt.executeQuery("select * from PatientRecords");

String s = "{\n";

while(rs.next()) { s +=

rs.getString(1) + "\n"; s +=

rs.getString(2) + "\n"; s +=

rs.getString(3) + "\n";

s += rs.getString(4) + "\n"; s

+= rs.getString(5) + "\n"; s +=

rs.getString(6) + "\n}\n";

} request.setAttribute("data", s); } catch(Exception e) {

System.out.println(e); } request.getRequestDispatcher("/data.jsp").forward(request,

response);

}

} <!DOCTYPE html> <html> <head>

<meta charset="ISO-8859-1">

<title>Insert Patient Details</title>

</head> <body>

<div

align='center'>

<form action='PatientServlet'

method='post'>

Name: <input type='text' name='name'/><br><br> Age: <input

type='number' name='age'/><br><br> Date of Admission: <input

type='date' name='date'/><br><br> Cause of Admission: <input

type='text' name='cause'/><br><br> Doctor Diagnosed: <input

type='text' name='doc'/><br><br> Treatment Proposed: <input

type='text' name='treat'/><br><br> <input type="submit"

value='update'/> </form> <br><br><br><br> <form

action='GetServlet' method='post'>

Get Current Database data: <input type='submit' value='Get

Data'/>

</form> </div>

</body> </html>

<%@ page language="java" contentType="text/html; charset=ISO-

8859-1"

pageEncoding="ISO-8859-

1"%> <!DOCTYPE html>

<html> <head> <meta

charset="ISO-8859-1">


</head> <body>

<div

align='center'>

<p>Updated Database:</p>

<pre>${requestScope["data"]}</pre>

<br><br><br><br> <form

action='GetServlet' method='post'>

Get Current Database data: <input type='submit' value='Get

Data'/>

</form> </div>

</bo

dy>

</ht

ml>

<%@ page language="java" contentType="text/html; charset=ISO-

8859-1"

pageEncoding="ISO-8859-

1"%> <!DOCTYPE html>

<html> <head> <meta

charset="ISO-8859-1">


</head> <body>

<div

align='center'>

<p>Database data:</p>

<pre>${requestScope["data"]}</pre>

<form action='GetServlet'

method='get'>

Update Database: <input type='submit' value='Add data'/> </form> </div>

</body> </html>

8. Write a JSP and Servlet Program to do the following to buy a T-Shirt online:

a. A set of checkboxes to select your T-Shirt accessories such as ‘belt’, ‘cap’,

‘hair-band’ etc.

b. A text area / text field to enter your T-Shirt tag-line

c. A Radio-button that allows the user to choose between T-Shirt with chest

pocket and without.

d. A Combo Box to choose your T-Shirt color

e. Appropriate labels for these GUI Components

f. A Button called “Click Me” which when pressed will

g. Insert the details entered into a table called ‘TShirts’.

h. An OrderNo is generated by adding ‘1’ to the existing ‘OrderNo’

i. If ‘TShirts’ table is empty the initial value of ‘OrderNo’ is 100.

j. This ‘OrderNo’ is also inserted into the ‘TShirts’ table

k. Display all the records of the ‘TShirts’ table in tabular form

PS: Frontend display should be in JSP and the business logic should be written in

Servlet Class.



import java.sql.*;

import javax.servlet.ServletException;





@WebServlet("/tcon")

public class tcon extends HttpServlet {


public tcon() {

super();

}

protected void service(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

response.setContentType("text/html");

PrintWriter out=response.getWriter();

String[] Accessories={};

Accessories=request.getParameterValues("access");

String tshirtAccessories="";

String tshirtTagLine=request.getParameter("tagline");

String tshirtOption=request.getParameter("pocket");

String tcolor=request.getParameter("Tshirtcolor");

out.println("<html>");

out.println("<head><title>T-shirt</title></head>");

out.println("<body>");

try {

Statement stmt;


Connection conn =

DriverManager.getConnection("jdbc:mysql://localhost:3306/tshrit", "root", "");

if (conn != null) {

stmt= conn.createStatement();

String qu;

if(tshirtAccessories!=null && tshirtTagLine!=null &&

tshirtOption!=null && tcolor!=null){

for(String option:Accessories){

tshirtAccessories=tshirtAccessories+option;

}

qu="insert into Tshirts

values("+null+",'"+tshirtTagLine+"','"+tshirtAccessories+"','"+tcolor+"','"+tshirtOption+"');";

stmt.executeUpdate(qu);

}

qu="select * from Tshirts;";

ResultSet rs =stmt.executeQuery(qu);

out.println("<table border=2>");

out.println("<tr>");

out.print("<td>OrderNo</td>");

out.print("<td>T-shirt Accessories</td>");

out.print("<td>T-shirt tag-line</td>");

out.print("<td>T-shirt type</td>");

out.print("<td>T-shirt color</td>");

out.println("</tr>");

if(!rs.isBeforeFirst()){

out.print("<tr>");

out.print("<td>100</td>");

out.print("<td>NULL</td>");






}

while(rs.next()){

out.println("<tr>");

out.print("<td>"+(Integer.parseInt(rs.getString("OrderNo"))+100)+"</td>");

out.print("<td>"+rs.getString("tshritAccessories")+"</td>");

out.print("<td>"+rs.getString("tshritTagLine")+"</td>");

out.print("<td>"+rs.getString("tcolor")+"</td>");

out.print("<td>"+rs.getString("tshritOption")+"</td>");


}

out.println("</table>");

out.println("<a href=\"tshrit.jsp\">click here</a>");

out.println("</body></html>");

}

}

catch (Exception e){

e.printStackTrace();

}

}

}

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

tshrit.jsp

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">


</head>

<body>

<form action="tcon" method="post">

T-Shirt Accessories<input type="checkbox" name="access" value="Belt"/>Belt

<input type="checkbox" name="access" value="Cap"/>Cap

<input type="checkbox" name="access" value="Hair-Band"/>Hair-Band<br>

Tag-Line<input type="text" name="tagline" size="50"/><br>

T-Shirt Feature:<input type="radio" name="pocket" value="ChestPocket"/>Chest

Pocket

<input type="radio" name="pocket" value="NoChestPocket"/>No Chest Pocket<br>

T-Shirt Color:<select name="Tshirtcolor">

<option>Blue</option>

<option>Red</option>

<option>Green</option>

</select><br>

<input type="submit" value="Place Orders"/>

</form>

</body>

</html>

9. Create a Telephone Directory Application using Servlet that searches the database

based on phone number or name. Also show database table creation with inserting 2-3

values to the table.

a. Database Name: OnlineDirectory

b. Table Design:

Table Name: Telephone_Directory

Attributes: Phone_Number, Name, Address, Company, Pin_Code.

JDBClogin.java

~~~~~~~~~~~~~~~~~~~~~~~~




import java.sql.Statement;







@SuppressWarnings("serial")

@WebServlet(urlPatterns={"/javaConnection"})

public class JDBClogin extends HttpServlet {

static Connection getConnection() throws Exception {

String driver = "com.mysql.jdbc.Driver";

String url = "jdbc:mysql://localhost/onlinedirectory";

String username = "root";

String password = "";

Class.forName(driver);

Connection conn = DriverManager.getConnection(url, username, password);

return conn;

}

public void doGet(HttpServletRequest request, HttpServletResponse response) throws

IOException {

PrintWriter out = response.getWriter();

//out.print("Working");


Connection conn = null;

Statement stmt = null;

java.sql.ResultSet rs = null;

try {

conn = getConnection();

stmt = conn.createStatement();

out.print("Working");

long inp;

try

{

inp =Long.parseLong(request.getParameter("phone"));

out.println(""+inp);

rs = stmt.executeQuery("SELECT * FROM tele_dir where contact="+inp);

}

catch(Exception e)

{

String name=request.getParameter("phone");

// out.println(""+name);

rs = stmt.executeQuery("SELECT * FROM tele_dir where name='"+name+"'");

}

if(rs.next()) {

String name = rs.getString(1);

long contact = rs.getLong(2);

String address = rs.getString(3);

String company = rs.getString(4);

int pin =rs.getInt(5);

out.println("name"+name);

out.println("contact:"+contact);

out.println("address:"+address);

out.println("company:"+company);

out.println("pin:"+pin);

}

else

{

out.println("no contact found");

}

} catch (ClassNotFoundException e) {

System.out.println("Error: failed to load MySQL driver.");


} catch (SQLException e) {

System.out.println("Error: failed to create a connection object.");


} catch (Exception e) {

System.out.println("Error: unknown");


}

finally {

try {

stmt.close();

conn.close();



}

}

}

}

~~~~~~~~~~~~~~~~~~~~~~~~

insert1.java

~~~~~~~~~~~~~~~~~~~~~~~~




import java.sql.Statement;







@SuppressWarnings("serial")

@WebServlet(urlPatterns = { "/ins" })

public class insert1 extends HttpServlet {

static Connection getConn() throws Exception {


String url = "jdbc:mysql://localhost/onlinedirectory";




Connection conn = DriverManager.getConnection(url, username, password);

return conn;

}

Connection conn1 = null;

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws IOException {

PrintWriter out = response.getWriter();

// out.print("Working");


Connection conn = null;

Statement stmt = null;

java.sql.ResultSet rs = null;

try {

// conn = getConn();


String url = "jdbc:mysql://localhost:3306/onlinedirectory";




conn1 = DriverManager.getConnection(url, username,

password);

if (conn1 != null)

System.out.println("Successful");

stmt = conn1.createStatement();

out.print("Working");

String name = request.getParameter("nam");

long contact = Long.parseLong(request.getParameter("cnt"));

String address = request.getParameter("address");

String company = request.getParameter("company");

int pin = Integer.parseInt(request.getParameter("pin"));

out.println("name" + name);

out.println("contact:" + contact);

out.println("address:" + address);

out.println("company:" + company);

out.println("pin:" + pin);

stmt.executeUpdate("insert into tele_dir values('" + name + "'," + contact + ",'" +

address + "','" + company + "'," + pin + ");");

out.println("updated the records");

} catch (ClassNotFoundException e) {

System.out.println("Error: failed to load MySQL driver.");


} catch (SQLException e) {

System.out.println("Error: failed to create a connection object.");



System.out.println("Error: unknown");


} finally {

try {

stmt.close();

conn1.close();



}

}

}

}

~~~~~~~~~~~~~~~~~~~~~~~~

Index.jsp

~~~~~~~~~~~~~~~~~~~~~~~~

<html>

<head>



</head>

<body>

<form action="javaConnection" method="get"/>

Enter name or phone:<input type="text" name="phone" /><br/>

<input type="submit" />

</form>

<a href="insert.html;">insert into directory</a>

</body>

</html>

~~~~~~~~~~~~~~~~~~~~~~~~

insert.html

~~~~~~~~~~~~~~~~~~~~~~~~

<html>

<head>

<meta charset="ISO-8859-1">


</head>

<body>

<form action="ins" method="get" >

name:<input type="text" name="nam" /><br/>

contact:<input type="text" name="cnt" /><br/>

address:<input type="text" name="address" /><br/>

company:<input type="text" name="company" /><br/>

pincode:<input type="text" name="pin" />

<input type="submit" />

</form>

</body>

</html>

10. Write a program using JSP that helps a student to calculate the income tax on various

annual incomes that he will be earning when he gets a job.

a. Login.html will call dataCapture.jsp that should do the following:

i. Use Java Collections to make a list of valid users and facilitate user

login functionality.

ii. Give a personalized Welcome message and display today’s date.

iii. Have a Text Entry with label ‘Name’ to enter the name of the user.

iv. Give a List of Organizations to choose ‘Place of Work’

v. Provide a Male or Female option to choose the ‘Gender’

vi. Have a Text Entry with label ‘Annual Income’

vii. Give a Submit button reading ‘Calculate Tax’

b. CalculateTax.jsp must calculate the interest based on the following business

rules:

i. Salary below 1,00,000 shall no have income-tax.

ii. Calculate 15% of tax on 1,00,001 – 5,00,000.

iii. Calculate 20% on 5,00,001 onwards.

PS: The final income tax along with the details of how it is calculated must be put in a

session object and displayed to the user in dataCapture.jsp. All the income taxes

calculated so far by the user, must be taken out of the session object and displayed,

each time in dataCapture.jsp which has a link called ‘Logout’ that destroys the session.

Login.jsp:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>


<title>Login Page</title>

</head>

<body>

<form action="dataCapture.jsp" method="post">

User Name: <input type="text" size="15" name="username"> <br>

Password: <input type="password" size="15" name="password"> <br>

<input type="submit" value="Login">

</form>

<%

String reason = request.getParameter("FailReason");

if (reason != null)

out.println(reason);

%>

</body>

</html>

dataCapture.jsp:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

pageEncoding="ISO-8859-1" import="java.util.* , java.text.*"%>



<html>

<head>



</head>

<body>

<%!HashMap hm;

String uname;

String pwd;

Map.Entry entry;

boolean login = false;

hm = new HashMap();

uname = request.getParameter("username");

pwd = request.getParameter("password");

hm.put("Archie", "Riverdale");

hm.put("Haddock", "Marlinspike");

hm.put("Hermione", "Hogwarts");

Set s = hm.entrySet();

Iterator it = s.iterator();

while (it.hasNext())

{

entry = (Map.Entry) it.next();

if (uname.equals(entry.getKey())

&& pwd.equals(entry.getValue()))

{

login = true;

}

}//end while

if (login == true)

{

out.println("<B><FONT COLOR = Blue>");

out.println("Welcome </FONT></B>");

out.println(uname);

DateFormat dateFormat = new SimpleDateFormat(

"yyyy/MM/dd HH:mm:ss");

Date date = new Date();

out.println("<BR><FONT COLOR = Green>");

out.println("Today is </FONT>" + dateFormat.format(date));

%>

<form action="CalculateInterest.jsp" method="post">

<FONT COLOR="Magenta"> First Name:</FONT> <input type="text"

size="15"

name="fname"> <br> <FONT COLOR="Brown">Last Name:

</FONT> <input type="text" size="15" name="lname"> <br> <FONT

COLOR="Purple">Select your Place of Work:</FONT> <br> <select

name="profession" size="3">

<option>IT Company</option>

<option>Private Bank</option>

<option>Insurance Company</option>

</select> <br> <input type="radio" name="gender" value="Male">

Male<br> <input type="radio" name="gender" value="Female"

checked>Female<br>

<br> <FONT COLOR="Red"> Annual Income(in Rupees):</FONT> <input

type="text" size="15" name="income"> <br> <br> <input

type="submit" value="Calculate Tax">

</form>

<%

}

else

{

%>

<jsp:forward page="Login.jsp">

<jsp:param name="FailReason" value="Wrong Username or Password" />

</jsp:forward>

<%

}

%>

</body>

</html>

CalculateInterest.jsp:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

pageEncoding="ISO-8859-1"%>



<html>

<head>


<title>Calculate Interest JSP</title>

</head>

<body>

<%

String fname = request.getParameter("fname");

String lname = request.getParameter("lname");

String gender = request.getParameter("gender");

String profession = request.getParameter("profession");

String prefix = " ";

if (gender.equals("Male"))

{

prefix = "Mr.";

} else if (gender.equals("Female"))

{

prefix = "Ms.";

}

%>

<FONT COLOR="Blue">Hello

<%=prefix%> <%=fname%> <%=lname%>

who works in a <%=profession%></FONT>

<%

String sincome = request.getParameter("income");

float income = Float.parseFloat(sincome);

out.println("<BR>Your Annual Income is " + income);

float tax;

float diff;

if (income <= 100000)

{

out.println("<BR>You are below the Tax Bracket!!");

}

else if (income > 100000 && income <= 200000)

{

out.println("Your Tax Bracket is between Rs.1,00000 to Rs.2,00000");

out.println("<BR>Tax to be paid is 10% of income above 1Lakh");

diff = income - 100000;

tax = (float) 0.1 * diff;

out.println("<BR>Tax to be paid is " + tax);

}


{

out.println("<BR>Your Tax Bracket is between between Rs.1,00000 to

Rs.3,00000");

out.println("<BR>Tax to be paid is 10% of income upto 1Lakh and 20% of rest of

income");


tax = (float) 0.2 * diff + (float) 0.1 * 100000;


}


{

out.println("<BR>Your Tax Bracket is between Rs.1,00000 to

Rs.4,00000");

out.println("<BR>Tax to be paid is 10% of income upto 1Lakh 20% of

income upto 3Lakh and 30% of rest of income");


tax = (float) 0.3 * diff + (float) 0.2 * 200000 + (float) 0.1

* 100000;


}

else if (income > 400000)

{

out.println("<BR>You fall in the tax bracket greater than Rs.4,00000");


tax = diff + (float) 0.3 * 300000 + (float) 0.2 * 200000

+ (float) 0.1 * 100000;

out.println("<BR>Tax to be paid is 10% of income upto 1Lakh 20% of

income upto 3Lakh, 30% of income upto 4 lakh and 100% of rest of income");


}//end if

%>

</body>

</html>

11. Create two tables Flight (Flight_Number, Airline_Name, Weekdays) and

seatReservation(Flight_Number, Date, Seat_Number, Customer_Name,

Customer_Phone) in MySQL database.

Create JSP page ReserveOnline.jsp to reserve an airline seat and insert the values into

the table SeatReservation. OnClick of Submit in ViewDetails.jsp display information

about reservation. Validate the Flight_Number from already existing Flight database

and generate random number for Seat_Number within the range 1-500.

Also create a link to display information of all the flights running on a particular day.

flightdete.jsp

~~~~~~~~~~~~~~~~~~~

<html>

<head>



</head>

<body>

<form action="flidet.jsp" method="post">

<p>Enter the day for flight details</p>

<input type="text" name="fdate" size="10" /> <input type="submit"

value="Click" />

</form>

</body>

</html>

~~~~~~~~~~~~~~~~~~~

flidet.jsp

~~~~~~~~~~~~~~~~~~~

<html>

<head>



</head>

<body>

<%

String fldate = request.getParameter("fdate");

String url = "jdbc:mysql://localhost/flight";

String user = "root";


Connection connection = null;

Statement stmt;

try

{

Class.forName("com.mysql.jdbc.Driver").newInstance();

out.println("hi, Flight details=");

connection = DriverManager.getConnection(url, user, password);

if (connection != null)

{

stmt = connection.createStatement();

String query = " select * from Flight where Weekdays='"

+ fldate + "'";

ResultSet re = stmt.executeQuery(query);

while (re.next())

{

out.println(re.getString("Flight_Number") + "\n"

+ re.getString("Airline_Name") + "\n"

+ re.getString("Weekdays") + "\n");

}

}

else

out.println("Connection refused");

}

catch (Exception e)

{

out.println(e.getMessage());

}

%>

</body>

</html>

~~~~~~~~~~~~~~~~~~~

ReserveOnline.jsp

~~~~~~~~~~~~~~~~~~~

<html>

<head>



</head>

<body>

<%

out.println("<B><FONT COLOR = Blue>");

out.println("Welcome </FONT></B>");

DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");

//Date datess = new Date();

out.println("<BR><FONT COLOR = Green>");

//out.println("Today is </FONT>"+dateFormat.format(datess));

%>

<form action="ViewDetails.jsp" method="post">

<FONT COLOR="Magenta"> Flight Number:</FONT> <input type="text"

size="15" name="fname"> <br> <FONT COLOR="Brown">Date:

</FONT> <input type="text" size="15" name="date"> <br> <FONT

COLOR="Brown">Customer Name: </FONT> <input type="text"

size="15"

name="custname"> <br> <FONT COLOR="Brown">Customer

Number: </FONT> <input type="text" size="15" name="custno"> <br>

<input type="submit" value="Submit form">

</form>

</body>

</html>

~~~~~~~~~~~~~~~~~~~

ViewDetails.jsp

~~~~~~~~~~~~~~~~~~~

<html>

<head>



</head>

<body>

<%

String fno1 = request.getParameter("fname");

int fno = Integer.parseInt(fno1);

String datea = request.getParameter("date");

Random rand = new Random();

int s = rand.nextInt(500);

String seat = Integer.toString(s);

String custname = request.getParameter("custname");

String custno = request.getParameter("custno");

int fno2 = Integer.parseInt(custno);

%>

<%

String url = "jdbc:mysql://localhost/flight";

String user = "root";


Connection connection = null;

//boolean flag=false;

String query2;

boolean h = false;

Statement stmt;

try

{

Class.forName("com.mysql.jdbc.Driver").newInstance();

connection = DriverManager.getConnection(url, user, password);

if (connection != null)

{

out.println("Connection created");

stmt = connection.createStatement();

query2 = "select * from Flight where Flight_Number='" + fno

+ "'";

ResultSet rs = stmt.executeQuery(query2);

while (rs.next())

{

h = true;

}

if (h)

{

out.println("Flight Number:" + fno + "\nDate:" + datea

+ "\nSeatNumber:" + seat +

"\nCustomerName:"

+ custname + "\nCustNumber:" + custno);

String query = "insert into SeatReservation values('"

+ fno + "','" + datea + "','" + seat + "','"

+ custname + "','" + custno + "');";

stmt.executeUpdate(query);

out.println("\nDetails inserted");

}

else

{

out.println("flight number doesnot exist");

}

}

else

out.println("Connection refused");

}

catch (Exception e)

{

out.println(e.getMessage());

}

%>

<p>

click for flight details <a href="flightdete.jsp">here</a>

</body>

</html>

12. a. Write a Java Program that creates two threads object of Thread class. Where one

thread asks the user to enter a number not less than four digits. Split the digits of the

number and display in words the value of the number. Ex: 1 – One. Second thread

finding the number of vowels in a word. Ex: JAVA – Vowel - A, Count – 2.

b.Write a program using java.net to transfer file from client socket to server socket.

GetStringThread.java

~~~~~~~~~~~~~~~~~~~~~~~~


public class GetStringThread extends Thread {

public String string;

public static String vowels = "aeiou";

public void run() {

Scanner s = new Scanner(System.in);

System.out.println("Enter a string: ");

string = s.next();

int x = 0;

for(char c : string.toCharArray())

for(char ch : vowels.toCharArray())

if(c==ch) x++;

System.out.print(x+" vowels present\n");

}

}

~~~~~~~~~~~~~~~~~~~~~~~~

GetNumberThread.java

~~~~~~~~~~~~~~~~~~~~~~~~


public class GetNumberThread extends Thread {

public String number;

private static String[] digit = new String[]

{"zero","one","two","three","four","five","six","seven","eight","nine"};

public void run() {

Scanner s = new Scanner(System.in);

System.out.println("Enter number with more than 4 digits: ");

number = s.next();

for(char c : number.toCharArray()) {

if(c<48||c>57) {

System.out.println("Invalid inputs");

break;

}

System.out.print(digit[((int)c-48)]+" ");

}

System.out.print("\n");

}

}

~~~~~~~~~~~~~~~~~~~~~~~~

InputThreads.java

~~~~~~~~~~~~~~~~~~~~~~~~

public class InputThreads {

public static void main(String[] args) throws InterruptedException {

GetStringThread getStringThread;

GetNumberThread getNumberThread;

getNumberThread = new GetNumberThread();

getStringThread = new GetStringThread();

//getNumberThread.start();

getStringThread.start();

Thread.sleep(100);

//getStringThread.start();

getNumberThread.start();

}

}

b. //server program

import java.io.*;

import java.net.*;

public class MyServer {

public static void main(String[] args){

try{

ServerSocket ss=new ServerSocket(6666);

Socket s=ss.accept();//establishes connection

DataInputStream dis=new DataInputStream(s.getInputStream());

String str=(String)dis.readUTF();

System.out.println("message= "+str);

ss.close();

}catch(Exception e){System.out.println(e);}

}

}

//client program

import java.io.*;

import java.net.*;

public class MyClient {


try{

Socket s=new Socket("localhost",6666);

DataOutputStream dout=new DataOutputStream(s.getOutputStream());

dout.writeUTF("Hello Server");

dout.flush();

dout.close();

s.close();

}catch(Exception e){System.out.println(e);}

}

}

Text Books:

1. Herbert Schildt, ‘The Complete Reference Java (J2SE 5 Edition)’, TATA McGRAW-HILL

Edition 2005.

2. Ivan Bayross, Sharanam Shah, Cyntiha Bayross and Vishali Shah, ‘Java EE 5 for

Beginners’, SPD (Sharoff Publishers & Distributors Pvt. Ltd.), 2nd edition August 2008.

Reference:

1. Jim Keogh,The Complete Reference J2EE‟, TATA McGRAW-HILL Edition 2002.

2. B V Kumar, S Sangeetha, S V Subrahmanya, J2EE Architecture, TATA McGRAW-HILL

Edition 2007.

Course Outcomes:

At the end of the course, students will be able to

1. Develop programs using collections such as lists, hashmaps and sets. (PO-1(2), 2(2),

3(3),5(3)) (PSO-1(3),2(3))

2. Develop front ends using swings and manipulate stored data. (PO-1(2), 2(2),

3(3),5(3)) (PSO-1(3),2(3))

3. Develop web applications using servlets, jsps and manipulate the data. (PO- 1(2),

2(2), 3(3),5(3)) (PSO-1(3),2(3))

4. Perform concurrent execution of programs to improve CPU utilization. (PO-1(2),

2(2), 3(3),5(3)) (PSO-1(3),2(3))

5. Develop reports and communicate effectively on the concepts related to Java and

J2EE. (PO-1(1),2(2), 10(3)) (PSO-2(2))

java and j2ee lab course code: isl67

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